Probably Mickey Mouse, the cartoon dates to l928 ( a Disney original) Kermit ( originally not a true frog but a ( Frog-like Creature) only came out as part of the Muppets act in the mid-sixties. The muppets traipsed about on various variety shows long before taking up residence at- Sesame Street.
The way I see it, Mikey Mouse was famous in his day & Hello Kitty is famous today. I'm a Hello Kitty fan myself, so you would think I would say Hello Kitty, but in reality, it's most likely Mikey Mouse.
The reason why I think that is that the world population is mostly boys. Boy's don't like things girls like - it's the way of life - so most boy's will like Mikey Mouse, even if they absolutely hate him. That's what I think anyway, but you can have your own opinion.
mickey mouse
Mickey Mouse
spider man
johnny depp
jhonny depp
Depp.
Jonny Depp
adele obvious
Johnny Depp.
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp
Johnny Depp.
johnny depp
Totally Johnny Depp.
Johnny Depp Obviously